Well I usually ignore them. But some sites have a report button like AP, and u can click the report to the card room manager, and what it does it automatically sends all of the chat to him to read over.
I usually turn off the chat unless some kid is being a real goof then I try to make him cry. I am sick off the kids that think they are tough because they are hiding behind their screen. sometimes the regul;ars ban together and put them in their place.
yep i do the same just turn off the chat or if u cba just ignore then they wil shut up soon enough and if they dont just report them you cant help it if u get lucky or the other person is just a donkey